United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2007_register executive 2010-09-22 article Rules and Regulations D09002ee1c80b7b81 D09002ee1c80b7bee United States Department of Transportation originator org United States Government Agency or Subagency United States Federal Motor Carrier Safety Administration originator org United States Government Agency or Subagency FMCSA amends the Federal Motor Carrier Safety Regulations to allow the use of automatic hydraulic inertia brake systems (surge brakes) on trailers when the ratios of gross vehicle weight ratings (GVWR) for the towing-vehicle and trailer are within certain limits. A surge brake is a self-contained permanently closed hydraulic brake system activated in response to the braking action of the towing vehicle. The amount of braking force developed by the trailer surge- brake system is proportional to the ratio of the towing vehicle to trailer weight and deceleration rate of the towing vehicle. This action is in response to a petition for rulemaking from the Surge Brake Coalition (Coalition). 72 FR 9855 https://www.govinfo.gov/app/details/FR-2007-03-06/E7-3815 E7-3815 fr06mr07-10 4910-EX-P Docket No. FMCSA-2005-21323 https://www.govinfo.gov/app/details/FR-2007-03-06/E7-3815 https://www.govinfo.gov/content/pkg/FR-2007-03-06/html/E7-3815.htm https://www.govinfo.gov/content/pkg/FR-2007-03-06/pdf/E7-3815.pdf Highway Safety Motor Carriers and Motor Vehicle Safety 17 p. 9855 9871 72 FR 9855 Title 49 Part 393 49 CFR Part 393 Parts and Accessories Necessary for Safe Operation: Surge Brake Requirements; Federal Register Vol. 72, Issue RULE E7-3815 DEPARTMENT OF TRANSPORTATION Federal Motor Carrier Safety Administration 2007-04-05 Docket No. FMCSA-2005-21323 4910-EX-P E7-3815 Final rule.

FMCSA amends the Federal Motor Carrier Safety Regulations to allow the use of automatic hydraulic inertia brake systems (surge brakes) on trailers when the ratios of gross vehicle weight ratings (GVWR) for the towing-vehicle and trailer are within certain limits. A surge brake is a self-contained permanently closed hydraulic brake system activated in response to the braking action of the towing vehicle. The amount of braking force developed by the trailer surge- brake system is proportional to the ratio of the towing vehicle to trailer weight and deceleration rate of the towing vehicle. This action is in response to a petition for rulemaking from the Surge Brake Coalition (Coalition).

Effective Date: April 5, 2007. Mr. Luke W. Loy, Vehicle and Roadside Operations Division, Federal Motor Carrier Safety Administration, 202- 366-0676, 400 Seventh Street, SW., Washington, DC 20590-0001. Office hours are from 9 a.m. to 5 p.m., e.s.t., Monday through Friday, except Federal holidays. Highway Safety Motor Carriers and Motor Vehicle Safety Motor carrier safety standards: Parts and accessories necessary for safe operation Surge brake requirements, http://dms.dot.gov http://trailer-bodybuilders.com/mag/trucks_break_brakes/ http://www.sae.org/servlets/productDetail?PROD_TYP=PAPER&PROD_CD=820135 Vol. 72, no. 43 Office of the Federal Register, National Archives and Records Administration 2007-03-06 continuing daily deposited born digital 200 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2007-03-06 P0b002ee180943c49 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr06mr07 https://www.govinfo.gov/app/details/FR-2007-03-06 https://www.govinfo.gov/content/pkg/FR-2007-03-06/pdf/FR-2007-03-06.pdf https://www.govinfo.gov/content/pkg/FR-2007-03-06/xml/FR-2007-03-06.xml fdlp 9841 10031 DGPO 2010-09-22 2024-06-05 FR-2007-03-06 machine generated eng FR FR-2007-03-06 72 43